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Net Income Per Share
 6 Months Ended
Dec. 31, 2013
Earnings Per Share [Abstract]  
Net Income Per Share
PER SHARE
Basic earnings per share are computed by dividing net income by the weighted average number of Common Shares outstanding during the period. Diluted earnings per share are computed by dividing net income by the shares used in the calculation of basic earnings per share plus the dilutive effect of Common Share equivalents, such as stock options, using the treasury stock method. Common Share equivalents are excluded from the computation of diluted earnings per share if their effect is anti-dilutive. 
 
 
Three Months Ended
December 31,
 
Six Months Ended
December 31,
 
 
2013
 
2012
 
2013
 
2012
Basic earnings per share
 
 
 
 
 
 
 
 
Net income
 
$
53,500

 
$
61,108

 
$
84,130

 
$
80,537

Basic earnings per share
 
$
0.90

 
$
1.04

 
$
1.42

 
$
1.38

Diluted earnings per share
 
 
 
 
 
 
 
 
Net income
 
$
53,500

 
$
61,108

 
$
84,130

 
$
80,537

Diluted earnings per share
 
$
0.90

 
$
1.04

 
$
1.41

 
$
1.37

Weighted-average number of shares outstanding
 
 
 
 
 
 
 
 
Basic
 
59,136

 
58,503

 
59,100

 
58,473

Effect of dilutive securities
 
457

 
480

 
375

 
488

Diluted
 
59,593

 
58,983

 
59,475

 
58,961

Excluded as anti-dilutive*
 
113

 
1,076

 
235

 
1,065

* Represents options to purchase Common Shares excluded from the calculation of diluted earnings per share because the exercise price of the stock options was greater than or equal to the average price of the Common Shares during the period.